The Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate: A Review After Real Use
As an equipment specialist with over a decade of experience across diverse environments – from dusty workshops and sterile labs to rugged outdoor expeditions and demanding field operations – I approach new gear with a critical eye. My expectation is that any tool or accessory I integrate into my workflow must demonstrably improve efficiency, reliability, or capability. When I first encountered the Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate, its promise of a universal fit for RMR-cut optics on Glock slides, without permanent modification, immediately piqued my interest. I was in a bit of a bind; I had a couple of Glock pistols that I wanted to outfit with red dot sights, but the cost and commitment of slide milling felt like a significant hurdle, especially when I was still experimenting with different optic models. Alternatives like dedicated optic plates for specific models were limiting, and I wanted flexibility. My initial impression of this mount was one of robust engineering; the solid S45C steel construction and the surprisingly compact design hinted at a serious piece of hardware. It offered a practical solution to a common dilemma for Glock owners, and I was eager to see if it lived up to its claims.
Real-World Testing: Putting Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate to the Test
First Use Experience
My testing ground for this optic mount was my personal shooting range and my workbench. I mounted the Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate onto a Glock 19 and a Glock 30. The process of installation was, to be blunt, a mixed bag initially. The instructions recommend tapping it into the rear dovetail using a nylon gunsmithing hammer, rather than a rear sight pusher, which is a crucial distinction. While the concept is simple, achieving a snug, perfectly seated fit required some careful, deliberate taps. It wasn’t difficult, but it demanded patience to ensure it was seated flush and not canted. Once in place, the concept of using the numerous set screws to “balance” the plate before adding the optic became clear; it’s about ensuring even pressure. My first surprise came when I attempted to mount a Vortex Viper PST-MRD. It fit the RMR footprint well, and the low profile was immediately noticeable, keeping the optic’s height over bore exceptionally minimal.
Extended Use & Reliability
After several hundred rounds through both pistols with the G.U.M. V2 installed, I can attest to its surprising durability and consistency. The solid S45C steel construction has proven its worth; there are no discernible cracks, significant scuffs, or signs of stress on the mount itself, even after being removed and reinstalled on one of the slides for testing a different optic. The phosphate finish, while basic, has held up reasonably well to light handling and cleaning. What’s particularly impressive is its ability to hold zero. I haven’t experienced any shift in the optic’s point of impact, which is a critical performance metric for any optic mounting solution. Maintenance is minimal, mainly involving a quick wipe-down and ensuring the set screws remain snug, which they have done naturally. Compared to some cheaper, polymer-based adapter plates I’ve encountered in the past, this steel unit feels like a far more robust and long-term solution, without the perceived risk of the material degrading over time.
Breaking Down the Features of Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate
Specifications
The Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate is engineered from solid S45C steel, a material chosen for its inherent strength and durability, ensuring it can withstand the recoil of various Glock models without issue. Its footprint is designed to accommodate most Mini/Micro Red Dot Sights (MRDS), specifically catering to the popular RMR cut. This mount boasts an exceptionally low profile, measuring just 0.24 inches in height, which significantly reduces the optic’s height over bore—a critical factor for faster sight acquisition and consistent shooting. The overall dimensions are compact: 1.91 inches in length and 1.12 inches in width, designed to integrate seamlessly with the slide without excessive overhang. Each unit weighs a mere 1.3 oz, adding minimal mass to the firearm. The mount is finished in a black phosphate, offering a matte, non-reflective surface that aids in camouflage and prevents glare. Its mounting mechanism utilizes the rear dovetail of Glock slides, secured by pre-installed set screws.
Performance & Functionality
In terms of core functionality, the Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate excels at providing a stable platform for red dot sights on non-optics-ready Glock slides. The lowest height-over-bore mount in the industry claim holds true; the optic sits incredibly close to the slide, which translates to a more natural and intuitive sight picture, especially when transitioning between a co-witnessed iron sight and the red dot. This low profile is a significant advantage over bulkier mounts. The universal SI Multi-Optic Mount pattern is cleverly designed, and with the included mounting posts and screws, it offers genuine versatility for a wide array of red dot sights. My testing with a Vortex Viper and a Holosun 507K confirmed this broad compatibility. The mount’s primary strength lies in its ability to bring red dot optics to a wider range of Glock pistols without the permanent alteration of slide milling. Its main limitation, however, is that it relies entirely on the dovetail for retention, which, while strong, might be perceived by some as less secure than a direct slide cut or a mount that engages additional slide features.
Design & Ergonomics
The design of this optic mount is characterized by its minimal super low-profile aesthetic, which is highly attractive on a firearm. It doesn’t add unnecessary bulk or disrupt the lines of the Glock slide. The S45C steel construction gives it a reassuring heft and a premium feel, far superior to plastic alternatives. The black phosphate finish is functional and subdued, blending well with most firearm finishes. Ergonomically, the mount itself doesn’t have direct contact points for the user’s hand, but its low profile ensures it doesn’t interfere with grip or handling of the pistol. The design prioritizes function over form, with the exception of its sleek, integrated look. The ingenuity of the set screw system for alignment and retention is a key ergonomic feature, allowing for fine-tuning before securing the optic. It’s a well-thought-out piece of engineering that feels solid and dependable once properly installed.
Durability & Maintenance
The solid S45C steel construction of the Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate suggests excellent long-term durability. Under repeated recoil cycles from .45 ACP and 9mm rounds, the mount has shown no signs of degradation. The black phosphate finish provides a good level of corrosion resistance for general handling and storage, though prolonged exposure to harsh elements might eventually necessitate re-application or care. Maintenance is straightforward: the mount requires an occasional cleaning, and it’s advisable to check the tightness of the set screws periodically, especially after a significant number of rounds have been fired. The real trick to its longevity, however, is proper installation. If it’s seated correctly in the dovetail, the stress is distributed effectively. I have not experienced any loosening or shifting after rigorous use, which speaks volumes about its ability to maintain its integrity.
Accessories and Customization Options
The Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate comes with a comprehensive set of mounting posts and screws, offering significant versatility for attaching a wide range of RMR-footprint optics. This kit ensures that users have the necessary hardware to properly interface their specific red dot sight with the mount. While the mount itself is not a customizable component in terms of color or material finishes beyond the standard black phosphate, its primary “customization” lies in its universal RMR cut and the SI Multi-Optic Mount pattern. This allows users to easily swap between various RMR-compatible red dots without needing to purchase new mounting plates for each optic. This adaptability is its most significant “accessory” feature, providing a broad platform for optic experimentation.
Pros and Cons of Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate
Pros
- Universal RMR Fit: Accommodates a wide array of Mini/Micro Red Dot Sights (MRDS) with an RMR footprint.
- Lowest Height-Over-Bore: Achieves an exceptionally low optic mounting position for better sight acquisition.
- No Slide Milling Required: Offers an optics solution without permanent modification to the firearm slide.
- Solid S45C Steel Construction: Ensures robust durability and long-lasting performance under recoil.
- Versatile Mounting Hardware: Includes necessary posts and screws for various red dot sights.
- Affordable Optics Solution: Provides a cost-effective way to add an optic to non-optics-ready slides.
Cons
- Installation Can Be Tricky: Requires careful tapping into the dovetail; not as simple as a direct screw-on mount.
- Dovetail Retention Only: Relies solely on the rear sight dovetail, which some may find less secure than multi-point or milled solutions.
- Limited to RMR Footprint: While universal for RMR, it doesn’t cater to other optic footprints without specific adapter plates for the mount itself.
Who Should Buy Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate?
This optic mount is an ideal solution for Glock owners who are looking to experiment with red dot sights without committing to expensive and permanent slide milling. It’s perfect for shooters who own multiple Glock models that aren’t optics-ready, or for those who frequently switch between different red dot sights and value the flexibility this mount offers. Individuals who prioritize a low optic height-over-bore for faster target acquisition will also find this mount highly beneficial. It’s also a great option for those on a budget who want to upgrade their pistol’s capability without breaking the bank.
However, those who require the absolute most secure mounting solution possible, or who frequently engage in extreme tactical scenarios where optic retention is paramount, might consider dedicated slide milling or specific optic plates for their chosen optic. Additionally, if your pistol has a non-standard or significantly worn rear dovetail, the fit might be compromised. For users with optics that use different footprints (like DeltaPoint, Docter, or others without an RMR adapter), this specific plate will not be directly compatible.
Conclusion on Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate
The Strike Industries G.U.M. GLOCK Version 2 Universal RMR Cut Optics Mount Adapter Plate is a genuinely innovative product that addresses a significant pain point for many Glock owners. Its solid S45C steel construction and impressively low height-over-bore design deliver on performance and usability, offering a level of quality often missing in universal adapter solutions. While the installation process requires a bit more care and attention than some might expect, the payoff is a stable, versatile platform for RMR-footprint red dot sights without sacrificing the integrity of your slide. For the price point of $49.95, the value proposition is undeniable. It democratizes access to red dot optics for a wider range of Glock pistols, providing an affordable yet robust alternative to custom slide work. I would confidently recommend this mount to any Glock owner looking to add an RMR-pattern red dot sight to their non-optics-ready pistol, provided they are willing to invest a little patience in the installation. It’s a smart, practical upgrade that significantly enhances a firearm’s capabilities.